Tool holder



Oct. 16, v1928.

. R. MlLEcz TOOL HOLDER Filed July 8, 1927 2 Sheets-Sheet 1 INVENTQH ATTOR N EY Oct. 16, 192:3.v 1,688,284'

- R. MILECZ TOOL HOLDER Filed July 8, 1927 2 sheets-sheet 2 INVENTOR n f BY m v O ATTORNEY Patented @et 16, 1928. f

UNI-TED .STATESg PATENT oFF-ICE, l

RUDOLPH MILECZ; or'ionoxnrr, new inkeer, @seltenen ro autres' Gruen, ortivnw i YORK, iv. Y,

l 'rooL Hermia.Y

Appli-ation fiiedjruiye, i927. sel-iai no., 204,383

rlhis invention relates to improvements inztool. holders of'4 the Akind shown and de scribedin my U. Sl Letters Patent `;H:1214,- 311:7 dated June 30th1917. x

The primary object of' the invention resides in atool holder for turning. lathes fand the like in which VthetoolV may beyremoved from the holder and replaced Without disturbing the set oi the tool,V thereby saving?` much time whichy is usually consumed'r in making` the necessary readjustincnts.`

Another object'of the invention' is to provide a tool ,holder embodying aA triple contact tool4 carryingtbase, Vand a tool carrying post detachably connected vtherewitln the parts being` so constructed 'as to enable-the post to bel removed@ and replaced Without Ldistu'rbinp;v the set of, the tool held. thereby. A further object of theinvention isto provide atool carrying head adjustably einbracing` thev tool, carrying, post and,` capable y of' being: rigidly iXed therewith. e

A still vfurther obje-cti is-th'e'provision of a tool holder in Whichany one off a plurality of set tools-may be interchangeably associated' therewithv` and Which might be used upon the piece ofworlr. l n

Wi h these andother objects in view', the

inventiont resides in. certainnovel construction and combination and arrangementof parts,L the essential features of` which are hereinafter fully described, are particularly pointed? out inthe appended claims, andare v,illustrated in the accompanying4 drawing, in

ivhichv Y y FigureV 1 isa sideY elevation of my'ime proved y.tool holder in.-}ositijon upon a slide rest.. Figure Qrisa` ,top planA vievv.,y

Figure 3 is a vertical sectional vierv on the line 3 3 of Figure@ f f Figure 4 isf` a-,h'orizontalsec the line 415-4 of,y Figure Figure 5 is at collective perspective view v of r the parts-of the tool holderina separated condition.,r i, y n

Referringy morev 'particularly` to the draw ings,v the reference numeral '10 designates a bolthavingaisquarehead 11 and a threaded shanlr'12. The head 11 'is received inthe inverted T-shaped' slot 13 of a slidihggrest 14k and .which is` slidableiover the body of a turning lathe (not shown). The shanl 12 rises vertically from, the slide rest andreceives a base member 15j in the form ofa V55 flat disk 16 having; an rannular Harige 17" ris- Y in therefromy Whilethree pointed'lugs 18 rise 'from the disk and are arranged radially about the flange 17 to provide a tripleeontact seat for a tubular post or sleeve 18. `The lower endy Voi the sleeve is provided` with three V -shaped notches `19 for rec-eivingtlie respective lugs 15- for properly aligning the sleeve for a purposel to be presently `eX- plained. The base member irests upon. the top ofthe slide rest `and is clamped' there. againstby a nut 20 which roacts Withthe threaded end o1 the shank 12 and'rwhich abuts the flange 17. of thebaseine'mber when screvvedmhome. Y f

Carried by the tubular post or sleeve 18V is asplit` ring clamp or tool headzlftlie split ends being provided.l With ears` 22 through which a clamping` bolt or` screwv 23 passes. The ring clamp 'or tool: headais adjusted upon the tubular post. to the desired.,` heightand is held ri'gdbythe' clampilrgy i screw 23.` The ring. clampk is provided with an` enlargedportion 24: which is provided With an upper recess 25 and a. lower. recess Qlgvhichrecesses aredividedby a. partition 27 from-Which theshanlr` 28 ot a tool holder' element 29 passes. The axis of theopening and the recesses .is at aan acuate angle with respect tothe axis of the clamping4 ringA for supporting a; tool 3() at an angle in a manner rto bev now described.`

gated head 31 on oneend of the shank 28 and which is received in the recess 26,,Whilei90V the headl `is kprovided with an elongated tional view on slot rihroughkwhich the tool SOfeXtends. The undersideiof the enlarged portionel is provided` With achannel 33 for receiving and y steadying the tool and when the' Aholder 95 is-in a set-position, one endv Wall of thefslot f 32 bears against the tool f and pulls the `same against the top Wall oit the channel 33y as clearlyshown in Figure. 3

of the drawings For 'holding` the tool` Ul ,30 set, I` provide a spacing collar 34 which surrounds the threaded end of theV shank 28 and seatsinthe recess 25. A retaining nut 30 co-acts with the threads on the shank 2S and .wheny tightened down Y against the collar 34, serves to hold the y so ,unit for interchangeable Vassociation with ak i the nut 38 is tightened down upon the washer 86, the postor sleeve 18 is held'down .tightl upon the seats provided on the base member. However, when it is d-esired to remove thetubular post or sleeve 18, the nut 38 is lunscrewed but doesnot have to be Y 'entirely unscrewed from the shank l2, as

the washer y'may beslid laterally and removed `from the top of the post, whereuponthe post is free to be lifted off itss'eat and over the end of the shank 12;

` Ina tool' holder of: this construction, it ispossible to initially yset 'a pluralityfof ,tools in separate ring clamps or heads, and `vtheclamps adgusted on individual tubular posts orcollarsvlS for use in connection with a piece of work, and which post and ring' clampy and cutting tool constitute a cutting single .base member and its several other coacting parts. This dispenses withl the usual practice of resettingthetool for the Vdifferent cutting operations which requires a `considerable waste of time and energy. By

having three lugs or seats 15 on the base member and a corresponding number-,of

l i'iotchesin'the posts, it is possible to accu- .45 `rately replace the cutting unit in position Vas the base member 1i y,is always heldin a set position on the-slide vrest bythe nut 20.

n The tool bits in a construction of this kind are prevented from mutilation as it is not necessary to coiitinuouslyjadjust the same because after lbeing initially adjusted',- the tool is maintained in a set] position until such time as it becomes necessary to again adjust the tool. l

- It lmight be mentioned that thevdiiferent heads or ringclamps -21 have channels 33 of different angles so -that the angle of the i "the said angle isset.

Vhile I have describedlwhatl deem to ltool seated therein need "not be adjusted as be the most desirableembodiment of my ini 1 flvention, it is obvious thatl manyof the details maybe `rvaried without iny anyway departing from the spirit of my invention;-

and I therefore do not .limit myself to -the 4exact details of construction herein set forth norv to anything lessthan the wholeof my invention limited only by the appendedk claims, e

What Vis claimed as new is 1. A tool holder comprising a bolt, a base member on said bolt, a nut threaded to said bolt and bearing against said base member, a tool holding unit seated on said base member, means for removably holding said tool holding unit seated on said base member l embodying a washer on'said bolt bearing against said tool holding unit, a nut thread-v ed to said b olt and bearing against said washer, and co-acting means between said baselinember vand said tool holding kunit for properly aligiiingsaid tool holder unit with ksaid base member, said co-acting means including spaced lugs rising'from said base memberk and correspondingnotches on said tool holder unit forreceiving the respective lugs. l

2. A tool holder comprising a headed bolt, a base member, a nut threaded to the shank of said bolt for holding saidbase member clamped down upon a supporting struct-ure held between said base member andthe head of said bolt, a tool yholder unit embodying,

a tubular post seated on said base member and a tool head adjustably mounted on'said .tubular post and clamping meansk for removably holding said ytubular-post seated upon said base member, said clamping means including a. Lslotted washer seated" onl the ytop of'said tubular post, vand anut threaded to the shank of said bolt for bearing engagelmentwith said washer.

3. Atool holder comprising headed bolt, a base member having vlugsrising therefrom,"

nut threaded to theA shank of said bolt for holding said base member clamped down upon a supporting structure held between said base member and the head ofsaid bolt,

,. a tubular post having notches for receiving the respective lugsyon said base member, 'a

tool head adjustably mounted on said tubu- Ylar post, a grinding'ftool adjustably sup' ported by said tool vlie"ad,"a washer encircling the shank of said headed bolt and seated' upon the top offsaid tubular member, and a retaining nut on Vthe threaded end of said bolt for engagement with said washer for holding said tubular member seated upon I said base member. 4 y

Il. In 'a tool holder, a Vtubular post, a. 'split l ring clamplencircling said tubularposh and a cutting, tool adjustablfy supported "said splitring clamp, a basey member providedv with upstanding lugs, for respective seatving in notches ypro'videdin the bottom y'edge of said tubular post.

5. A tool holder comprisingaheaded bolt, a base member, a nut threaded to the shank of saidy boltffor rholding-'said base member clamped down upona supporting structure held between said base member and the head of said bolt, a tool holding unit embodying a tubular post seated on said base member and clamping means for removably holding said tubular post seated upon said base member, ysaid Clamping means including a washer on said boltJ seated on the top of said tubular post and a nut threaded to the Shank of said bolt for bearing engagement with said Washer.

kIn testimony whereof I have ailixed my signature.

RUDOLPH MILECZ. 

